I have 130w panel plugged in the side of the camper (Solar on the side plug). I out my controller right the back of the panel. Had no issues on the 46 day run.
I also wanted more USB ports, so I made up a couple battery packs of 18650 Lithiums 3200mah x 8 each. That works very well. Re-charge from the truck or from the USB port in the Pod. Runs our USB fans and other items.
I did mount a 1200w inverter up front below the dinette seat. There's a set of auto-reset breakers under the Pod up front and taped into those. Now, I don't run anything big off it and it also worked very well.
I debated what you are about to do and found this solution works well for me.